Controlling Yamaha AV RX-A830 from command line

At home I have been using a Yamaha AV RX-A380, it’s an home teather audio video solution where you can plug about everything you need (like 7 hdmi channel, spoiler alert there is something wrong with you if you have that many devices) and output to two other hdmi channel (like a tv and a projector).

It has integration for spotify, airplay, netradio and billions of connection to everything, just look at the damn back of this device :

Since I wanted to control it from the command line to automate it for home automation, I firebugged the web interface and reversed some of the REST calls in a nice bash script.

Here it is at your convenience to using or hack it :

This doesn’t support multi-zone and assume the web interface is resolvable to http://yamaha.local/ (it should be by default) so be aware. This may support other Yamaha AV devices but since I don’t have it I can’t say and you may have try, if it does kindly add a comment here soother would know 🙂

The trick to get your wordpress behind a reverse proxy

I have been meaning to get this blog SSL protected for a while and since solution like letsencrypt makes it easy I have generated some SSL keys for my domain  and configured it in apache.

So far so good, but the thing is my VM at my hosting provider is pretty small and I have been using varnish for quite some time or I would get out of memory quickly some the kernel OOM killer kicking[1] it.

Varnish don’t do SSL so you have to do something else, I went ahead and used Nginx to provide my SSL endpoint which then would look like this :

nginx-varnish-apache

I could have done it with apache virtualhosts which look like this :

apache-virtualhosts-varnish-ssl

I went finally for nginx since most people seems to say that it was more lean and quick for those kick of ssl accelerator job.

So far so good for the configuration, you can find those informations all over the internet, the nginx ssl configuration was a bit special so I can have the higher secure end of SSL encryption :

Now the thing didn’t work very well when accessing the website, I could not see any of th medias including JS and SSL since they were served on the old non ssl url. I tried to force the wordpress configuration to serve SSL but I would end up in a http redirect loop.

Finally I stumbled on this guy blog and looked at a hack to put in the wp-config.php file. I streamlined it to :

    
if ( (!empty( $_SERVER['HTTP_X_FORWARDED_HOST'])) ||
     (!empty( $_SERVER['HTTP_X_FORWARDED_FOR'])) ) {
    $_SERVER['HTTPS'] = 'on';
}
    

and that’s it, wordpress would then understand it would serve as HTTPS and would add its https url properly.

Hope this helps

[1] I had even a cron sometime ago to mysqlping my mysql server and restart it automatically if it was down since I was so sick of it

Unit conversion from zsh

Quick conversion from shell :

rsync like backup to Rackspace Cloud File with duplicity

It seems that there is no much documentation about how to do rsync like backup with duplicty so here it is :

#!/bin/bash
UPLOAD_TO_CONTAINER="backup" #adjust it as you like
export CLOUDFILES_USERNAME=Your Username
export CLOUDFILES_APIKEY=API_KEY_YOU_GOT
export PASSPHRASE=The Passphrase for your encrypted backup

duplicity /full/path cf+http://${UPLOAD_TO_CONTAINER}

This should take care to upload the backup files to the backup container. It does that incrementally and detect the changes to your file system to upload. There is much more option for duplicity look at the manpage for more info.